1998 tiger river spa model L siberian

when i turn the heat controll past 104 degrees it gives me 4 more options
are they pre sets, does any one know? nothing is listed in the manual for 1999 (this is the only one i could find on the web) thanks

uE1,uE2,uE3, and uE4 are all set temp's opver 104. IIRC, ue1 is 105, ue2is 106, ue3 is 106.5, and eu4 is 107.

UL doesn't allow "Set" temps to display any temp higher than 104, so this is Hot Spring's answer.

now thats hott
Thanks